Math - Trigonometry

posted by Ollie

Solve for x, correct to one decimal place. It`s a right angle triangle. The height for the triangle is 4 cm with a 48° angle. The bottom of the triangle is an x. I got the answer 3.3 cm, is this correct? Any help would be appreciated. Thanks!

  1. John

    Did you use tan48 = x/4 ? and then solve for x.

  2. Ollie

    Hello John,
    I was thinking of doing 4tan48° on my calculator, and the answer i got was 4.4 cm, but i wasn't sure if this was correct or not. Is this right? Thank you.

  3. John

    Yes. You have rounded. But it is correct : )

  4. Ollie

    Thank you so much for your help, John. :)

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